I invite to the unit my 12V batteries should go Wenns quickly. But this device is very good. Little test showed: to about 45 A at 15V steadfast, 50a v constant at 14.31, although it has been regulated 15V. Given the price absolutely great product. I do not mind the voltage drop in the last few amps, charging anyway feststllschalter with the super practical 13.8V. Since I can not evaporate and the bats can so many of the same as I would hang without which I have to worry about the power supply somehow.
One negative point I have, however.
And slams it recently in the power supply at power once and a spark flies through the air vent. Does not sound healthy. No odor or smoke. Seems to just be an arc. Have so far found no problems in any respect. From me 5 stars because that part works. Since one year.